An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Heyes C.Heyes C.Philos Trans R Soc Lond B Biol Sci. 2009 Aug 27;364(1528):2293-8. doi: 10.1098/rstb.2009.0049.Philos Trans R Soc Lond B Biol Sci. 2009.PMID: 19620101Free PMC article.
Ray E, Heyes C.Ray E, et al. Among authors: heyes c.Dev Sci. 2011 Jan;14(1):92-105. doi: 10.1111/j.1467-7687.2010.00961.x.Dev Sci. 2011.PMID: 21159091Review.
Heyes C.Heyes C.Philos Trans R Soc Lond B Biol Sci. 2016 Jan 19;371(1686):20150069. doi: 10.1098/rstb.2015.0069.Philos Trans R Soc Lond B Biol Sci. 2016.PMID: 26644604Free PMC article.Review.